One thing that most mixed martial arts (MMA) fans have come to accept is that there will always be performance enhancing drug (PED) usage in the sport. While the fighters are tested to whatever standard is set by the Association of Boxing Commissions (ABC), it doesn't take a genius to realize that despite some positive tests, there are many who slip through the cracks.

The latest appears to be testosterone replacement therapy (TRT), which is used to help males normalize if their levels of testosterone are below a 1:1 Testosteron to Epitestosterone ratio. It's a completely legal treatment in the United States as long as you can find both an endocrinologist and clinic that will give you treatments.